package Day03;

public class OperDemo5 {
    public static void main(String[] args) {
        int age = 20;
        System.out.print("age=");
        System.out.println(age);
        System.out.println("age=" + age);
        System.out.println("我今年" + age + "岁了");


        String name = "cjc";
        System.out.println("大家好，我叫" + name);
        System.out.println("大家好，我叫" + name + "今年" + age + "岁了");


        System.out.println("" + 10 + 20 + 30);
        System.out.println(10 + 20 + 30 + "");
        System.out.println(10 + 20 + "" + 30);


    }
}
